Improvements in or relating to valves,申请号GB19330013373-传众专利搜索

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发明名称	Improvements in or relating to valves
摘要
申请公布号	GB412027(A)	申请公布日期	1934.06.21
申请号	GB19330013373	申请日期	1933.05.08
申请人	FRENCH HUGH MOREHEAD;JESSE CHESTER MARTIN JR.;WALWORTH PATENTS INC.	发明人
分类号	F16K5/22	主分类号	F16K5/22
代理机构		代理人
主权项
地址

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